header .nav a,
.service-botton {
    color: #3C3C3C;
}

#fv {
    width: 100%;
    height: 55.555vw;
    background-color: #F7F7F7;
    position: relative;
    overflow: hidden;
}

.fv_img {
    animation: img 1s ease-in-out;
}

@keyframes img {
    0% {
        opacity: 0;
    }
    50% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

.mask {
    background-color: #3C3C3C;
    width: 0;
    height: 41.66vw;
    top: 34.7222vw;
    position: absolute;
    left: 0;
    z-index: 2;
    animation: filter 1.5s ease-in-out;
}

@keyframes filter {
    0% {
        opacity: 0;
        width: 0%;
        left: 0;
    }
    35% {
        left: 0;
        opacity: 1;
        width: 68.055vw;
    }
    95% {
        opacity: 1;
    }
    100% {
        width: 0;
        opacity: 0;
        left: 68.055vw;
    }
}

.navicon {
    background: black;
}

.navicon:before,
.navicon:after {
    background: black;
}

.background_text {
    font-size: 18.19vw;
    color: white;
    position: absolute;
    top: 17.847vw;
    left: 25.277vw;
    font-weight: bold;
    z-index: 0;
}

.fv_img {
    width: 68.055vw;
    position: absolute;
    top: 34.7222vw;
    z-index: 1;
}

.fv_content {
    position: absolute;
    top: 17.84vw;
    left: 13.75vw;
    z-index: 1;
}

.fv_content h2 {
    font-size: 4.3vw;
    line-height: 5.486vw;
    margin-bottom: 1.4583vw;
}

.fv_content h3 {
    font-size: 0.97vw;
    line-height: 1.458vw;
    letter-spacing: 1px;
    font-family: helvetica, arial, 'hiragino kaku gothic pro', meiryo, 'ms pgothic', sans-serif;
}

#design {
    margin-top: 29.8vw;
    overflow: hidden;
}

.design_text {
    display: inline-block;
    margin-top: 4.236vw;
    margin-left: 13.889vw;
    vertical-align: top;
}

.small_title {
    font-size: 0.97vw;
    margin-bottom: 0.69vw;
}

.design_text h4 {
    font-size: 2.08vw;
    color: #000;
    line-height: 1.5em;
    margin-bottom: 2.986vw;
}

.explain {
    font-size: 0.97vw;
    line-height: 2.2em;
}

.design_img {
    display: inline-block;
    width: 45.7vw;
    float: right;
}

#forte {
    padding-bottom: 11.4vw;
    background-color: #F5F5F5;
    padding-top: 4.44vw;
    margin-top: 4.44vw;
    text-align: center;
}

#forte h4 {
    font-size: 2.0833vw;
    margin-bottom: 1.8vw;
}

#forte .caption {
    font-size: 1.11vw;
    margin-bottom: 5.2778vw;
}

.forte_wrap {
    padding: 0 4.236vw;
    display: flex;
    justify-content: space-between;
    padding: 0 13.8889vw;
}

.forte_content {
    position: relative;
    width: 19.444vw;
    padding-top: 2.8472vw;
    padding-bottom: 1.18vw;
    box-shadow: 0px 0px 10px 0px #9C9C9C;
}

.forte_content img {
    width: 6.944vw;
    margin-bottom: 2.152vw;
}

.forte_content .sub {
    font-size: 0.97222vw;
    color: #B2B2B2;
    font-weight: bold;
}

.forte_content h5 {
    font-size: 1.25vw;
    margin-bottom: 0.97vw;
}

.forte_content .forte_text {
    font-size: 0.902778vw;
    display: inline-block;
}

.forte_content .forte_text p {
    text-align: left;
}

.text_wrap {
    width: 100%;
}

.forte_text {
    text-align: left;
}

#work {
    padding-top: 4.7222vw;
    padding-bottom: 5.66vw;
    background-color: #3A3A3A;
    position: relative;
}

.our {
    color: white;
    position: absolute;
    transform: rotate(-90deg);
    top: 7vw;
    left: 0;
}

#work h4 {
    padding-left: 13.8889vw;
    font-size: 2.0833vw;
    color: white;
    line-height: 1em;
    margin-bottom: 1.736vw;
}

#work p:not(.our) {
    line-height: 1.5em;
    padding-left: 13.8889vw;
    color: white;
}

.work_wrap {
    margin-top: 5.555vw;
    margin-left: 11.5vw;
}

.work_wrap div {
    transform: translateX(-64.5%);
    margin: 0 2.36vw;
}

.slick-prev {
    left: auto;
    right: calc(16vw + 50px);
    top: -10vw;
}

.slick-next {
    left: auto;
    right: calc(6.6vw + 50px);
    top: -10vw;
}

footer {
    margin: 0;
}

@media(max-width:900px) {
    #fv {
        height: 120vw;
    }
    .background_text {
        font-size: 21.86vw;
        top: 54.13vw;
        left: 17.33vw;
    }
    .fv_content {
        top: 44.533vw;
        left: 8vw;
    }
    .fv_content h2 {
        font-size: 11.2vw;
        margin-bottom: 2.66vw;
        line-height: 14.133vw;
    }
    .fv_content h3 {
        font-size: 3.2vw;
        line-height: 4.8vw;
    }
    .fv_img {
        width: 96vw;
        top: 85.33vw;
    }
    .mask {
        background-color: #3C3C3C;
        width: 0;
        height: 58.667vw;
        top: 34.7222vw;
        position: absolute;
        left: 0;
        z-index: 2;
        top: 85.33vw;
        animation: filter 1.5s ease-in-out;
    }
    @keyframes filter {
        0% {
            opacity: 0;
            width: 0%;
            left: 0;
        }
        35% {
            left: 0;
            opacity: 1;
            width: 96vw;
        }
        95% {
            opacity: 1;
        }
        100% {
            width: 0;
            opacity: 0;
            left: 96vw;
        }
    }
    .design_text {
        margin-left: 6.933vw;
        padding-right: 6.9333vw;
    }
    .small_title {
        font-size: 3.2vw;
        margin-bottom: 1.86vw;
    }
    .design_text h4 {
        font-size: 7.46vw;
        margin-bottom: 8vw;
    }
    .explain {
        font-size: 3.733vw;
    }
    .design_img {
        margin-top: 8.53vw;
        width: 83.73vw;
    }
    #forte h4 {
        font-size: 8vw;
    }
    #forte .caption {
        font-size: 3.2vw;
        color: #5C5C5C;
    }
    #forte {
        padding-top: 14.4vw;
    }
    .forte_wrap {
        display: block;
        padding: 0 17.866vw;
    }
    .forte_content {
        padding-top: 10.9333vw;
        padding-bottom: 4.533vw;
        width: 100%;
        margin-bottom: 17.333vw;
    }
    .forte_content img {
        width: 26.666vw;
        margin-bottom: 8.2667vw;
    }
    .forte_content .sub {
        font-size: 3.733vw;
    }
    .forte_content h5 {
        font-size: 3.733vw;
    }
    .forte_content .forte_text p {
        font-size: 3.4667vw;
    }
    #work {
        padding-top: 8.266vw;
        padding-bottom: 12.26vw;
        overflow: hidden;
    }
    #work h4 {
        font-size: 8vw;
        margin-bottom: 3.4667vw;
    }
    #work p:not(.our) {
        font-size: 3.2vw;
        margin-bottom: 12.26vw;
        line-height: 1.5em;
    }
    .work_content {
        margin-bottom: 12.26vw;
        width: 93vw;
        float: right;
    }
    .our {
        display: none;
    }
}